Foreword

Welcome to the container revolution. By reading this book, you’re opening your eyes to a new world of tools that are forever changing the way we build, deploy, and run software. Once I discovered Docker in 2014 (the year after it was open-sourced) I did something I had never done in my 20+ year career: I decided to focus exclusively on this single technology. That’s how much I believed in what Docker was doing to make our ever-increasing IT world easier to manage.

Fast forward to today, and what’s still unique about Docker’s way of creating and deploying containers is that it has both developers and operators in mind. You can see this in the user-experience of its command-line tools, and with hundreds of tools in the container ecosystem, I keep coming back to Docker as the easiest and smoothest way to get things done.

Jeff and Stephen know this too about Docker’s streamlined approach to containers, which is why this book focuses on the details of the core tools. Docker Engine, Docker Compose, and Docker Swarm are key tools we should all know. They often solve your problems without the need for more complex solutions. This same methodology is how I teach my students and how I guide my clients.